[A photometric method for the determination of lead in washings]

In a set of reactions used in photometric lead detection, the arcenaso III and sodium molibdate reaction was chosen for lead control, the measurement level being 0.1 micrograms/cm2 and the measurement range of 0.1-3 micrograms/cm2. The technique is applicable in presence of Fe+2, Fe+3, Al+3, Sn+4, Ni+2, Cr+2, Cr+6, Cd+2, Co+2, Zn+2.